Answers

The simplest form of -3994/2520 is -1997/1260.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 3994 and 2520 is 2
2. Divide both the numerator and denominator by the GCD
   -3994 ÷ 2/2520 ÷ 2
3. Reduced fraction: -1997/1260
   Therefore, -3994/2520 simplified to lowest terms is -1997/1260.

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